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Leaching kinetics of lead from lead (II) sulphate in aqueous calcium chloride and magnesium chloride solutions
(Elsevier Science Bv, Amsterdam, 1997)
The kinetics of lead leaching from lead (II) sulphate in aqueous calcium chloride and magnesium chloride solutions was studied. The leaching rates of lead were measured by using an agitated vessel at atmospheric pressure, ...
Selection of Calculation Method for Temperature Distribution in 99 Mass-% Al 2 O 3 Refractories
(Verlag Schmidt GmbH, 1998)
Refractories are constantly exposed to temperature changes. In most cases this exposure causes damage. In this work, attention is paid to problems of non-steady-state heat transfer. Some analytical and numerical methods ...
Electrical resistance of cotton-metal fibre yarns
(Inst Chemical Fibres, Lodz, 1999)
Yarns representing cotton-metal fibre blends were studied. The electrical resistance of yarns including different fractions of cotton and metal fibres was compared with cotton yarns having the same nominal characteristics. ...
The thermal degradation of polymethacrylonitrile with different end groups
(Springer, Dordrecht, 1997)
Polymethacrylonitrile (PMAN) was prepared by bulk, solution and precipitation polymerization. The thermal stability of the polymer, which is affected by the structure of the chain end groups, was studied by non-isothermal ...
Coherent optical fiber bundles production
(Trans Tech Publications Ltd, Durnten-Zurich, 1996)
Optical fiber bundles are used in many fields of modern technology. Their production includes drawing of three layer optical fibers and sintering of the obtained fibers into a solid block. Mathematical models for two most ...
Synthesis of spinel powders by the spray pyrolysis method
(Trans Tech Publications Ltd, Durnten-Zurich, 1997)
In this paper synthesis of spinel powders by the two-fluid spray pyrolysis method was performed. The influence of the precursors (AlCl3·9H2O and MgCl2·6H2O for S-1 powder and boehmite sol and MgCl2·6H2O for S-2 powder) on ...
Structural investigation of the chabazite like aluminophosphate prepared in the presence of HF.
(Amer Chemical Soc, Washington, 1997)
Rheological behavior of cured acrylate-terminated unsaturated copolyesters
(Wiley-VCH Verlag Gmbh, Weinheim, 1998)
The viscoelastic properties of cured acrylate-terminated copolyesters were studied by means of dynamic mechanical analysis. The influence of terminal double bonds, as well as of the cis-trans configuration and distribution ...
The efficiency of an enzyme treatment in reducing wool shrinkage
(Taylor & Francis Ltd, Abingdon, 1998)
The influence of different experimental conditions, chosen according to a central rotatable plan (Box-Hunter) at three levels of treatment time, on the shrink-resistance properties of wool treated with serine proteinase ...
Template effect in caesium selective phenolic resins
(Kluwer Academic Publ, Dordrecht, 1998)
Two new phenolic resins have been synthesised by alkaline polycondensation of resorcinol and acetaldehyde using template polymerisation. The extraction properties of the resins have been evaluated in competitive extraction ...